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| author | David Blaikie <dblaikie@gmail.com> | 2022-08-11 21:55:44 +0000 |
|---|---|---|
| committer | David Blaikie <dblaikie@gmail.com> | 2022-08-15 23:28:51 +0000 |
| commit | c63f2581f4f8ff9766b55410674f97245c51b7b4 (patch) | |
| tree | de9903e22fb6926d251ed893e8fa7db11ca0dd3e /libcxx/CMakeLists.txt | |
| parent | 5a1f864e89ab4a8e43fd12c9ee590b6c4558deb7 (diff) | |
| download | llvm-c63f2581f4f8ff9766b55410674f97245c51b7b4.tar.gz | |
Enable -Wctad-maybe-unsupported in LLVM build
Warns on potentially unintended use of C++17 Class Template Argument
Deduction. Use of this feature with types that aren't intended to
support it may may future refactorings of those types more difficult -
so this warning fires whenever the feature is used with a type that may
not have intended to be used with CTAD (the warning uses the existence
of at least one explicit deduction guide to indicate that a type
intentionally supports CTAD - absent that, it's assumed to not be
intended to support CTAD & produces a warning).
This is disabled in libcxx because lots of the standard library is
assumed to provide ctad-usable APIs and the false positive suppression
in the diagnostic is based on system header classification which doesn't
apply in the libcxx build itself.
Differential Revision: https://reviews.llvm.org/D131727
Diffstat (limited to 'libcxx/CMakeLists.txt')
| -rw-r--r-- | libcxx/CMakeLists.txt | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/libcxx/CMakeLists.txt b/libcxx/CMakeLists.txt index bbc9005274ff..aeaf6b062472 100644 --- a/libcxx/CMakeLists.txt +++ b/libcxx/CMakeLists.txt @@ -592,6 +592,7 @@ function(cxx_add_warning_flags target) -Wno-user-defined-literals -Wno-covered-switch-default -Wno-suggest-override + -Wno-ctad-maybe-unsupported ) if (LIBCXX_TARGETING_CLANG_CL) target_add_compile_flags_if_supported(${target} PRIVATE |